The 2007 Microsoft Office suite Service Pack 1 delivers important
customer-requested stability and performance improvements, while incorporating
further enhancements to user security. This service pack also includes all of
the updates released for the 2007 Office suite prior to December of 2007. You
can get a more complete description of SP1, including a list of issues that were
fixed, in the Microsoft Knowledge Base article 936982: Description of the 2007
Microsoft Office suite Service Pack 1.

Service Pack 1 will install even if a publicly available update has already been installed on your computer.

SP1 also includes stability improvements developed as a result of user input
from the Microsoft Online Crash Analysis
and from Microsoft Product Support feedback.

To successfully install SP1, you must have Microsoft Installer 3.1
(MSI 3.1) or higher. For more information, including instructions for
downloading MSI 3.1, please see the Microsoft Knowledge Base article
942101.

To successfully install SP1, you will need more free hard disk space
than the size of the patch itself. For more specific information about the
space requirements, please see the Microsoft Knowledge Base article
943589.

There are several scenarios that may require you to reboot your computer after
SP1 is installed. For more information, see the Microsoft Knowledge Base
article 942995.

To install this update, do one of the following:

Use
Microsoft Update (recommended). Microsoft Update consolidates updates
provided by Windows Update and Office Update into one location and enables
you to choose automatic delivery and installation of high-priority updates.

Use
Office Update on the Office Online Web site. After running the automatic
detection, Office Update prompts you to install updates and service packs
that bring your Office products up to the best quality available. Office
Update is not supported on Windows Vista.

Download the file by clicking the Download button at the top of this page. Save the file to your hard disk drive. Note: The 2007 Office suite SP1 is
available on CD-ROM through the Office Online page
Order Office Service Packs on CD-ROM.

It is recommended that you quit any programs you are running.

In Windows Explorer, double-click the .exe file that you saved to your hard disk drive, and follow the instructions on the screen.

When using other Microsoft Office products
If you are using the following Microsoft Office products, we recommend that you
get the latest service packs: